Don't give up, it can be done. I have my laptop (1280*800) and an external monitor 1920*1080 showing in the correct format for each screen BUT not at the same time. I found you had to select either Monitor 1 or Monitor 2 and not Monitor 1 and Monitor 2 at the same time. I just switch between them with an ALT/F Fey combination (or pull the external monitor lead).
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